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Title: Folded membrane dialyzer with mechanically sealed edges

Abstract

A semipermeable membrane is folded in accordion fashion to form a stack of pleats and the edges are sealed so as to isolate the opposite surfaces of the membrane. The stack is contained within a case that provides ports for flow of blood in contact with one surface of the membrane through channels formed by the pleats and also provides ports for flow of a dialysate through channels formed by the pleats in contact with the other surface of the membrane. The serpentine side edges of the membrane are sealed by a solidified plastic material, whereas effective mechanical means are provided to seal the end edges of the folded membrane. The mechanical means include a clamping strip which biases case sealing flanges into a sealed relationship with end portions of the membrane near the end edges, which portions extend from the stack and between the sealing flanges.

Inventors:
 [1]
  1. Burnsville, MN
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
862635
Patent Number(s):
3979295
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
folded; membrane; dialyzer; mechanically; sealed; edges; semipermeable; accordion; fashion; form; stack; pleats; isolate; opposite; surfaces; contained; provides; ports; flow; blood; contact; surface; channels; formed; dialysate; serpentine; solidified; plastic; material; effective; mechanical; means; provided; seal; clamping; strip; biases; sealing; flanges; relationship; portions; near; extend; plastic material; opposite surfaces; semipermeable membrane; channels formed; permeable membrane; opposite surface; mechanical means; sealing flanges; sealed relationship; sealing flange; sealed relation; site surface; /210/

Citation Formats

Markley, Finley W. Folded membrane dialyzer with mechanically sealed edges. United States: N. p., 1976. Web.
Markley, Finley W. Folded membrane dialyzer with mechanically sealed edges. United States.
Markley, Finley W. Thu . "Folded membrane dialyzer with mechanically sealed edges". United States. https://www.osti.gov/servlets/purl/862635.
@article{osti_862635,
title = {Folded membrane dialyzer with mechanically sealed edges},
author = {Markley, Finley W},
abstractNote = {A semipermeable membrane is folded in accordion fashion to form a stack of pleats and the edges are sealed so as to isolate the opposite surfaces of the membrane. The stack is contained within a case that provides ports for flow of blood in contact with one surface of the membrane through channels formed by the pleats and also provides ports for flow of a dialysate through channels formed by the pleats in contact with the other surface of the membrane. The serpentine side edges of the membrane are sealed by a solidified plastic material, whereas effective mechanical means are provided to seal the end edges of the folded membrane. The mechanical means include a clamping strip which biases case sealing flanges into a sealed relationship with end portions of the membrane near the end edges, which portions extend from the stack and between the sealing flanges.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

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